Just in case you didn't see it in the other thread.
Six new videos uploaded today, all on trigonometry. There is a mix of basic 1st/2nd year stuff up to a LCHL word problem. Check them out and don’t forget to subscribe on YouTube to get all the updates.
Naming sides of a right angle triangle and introduction to sin, cos and tan: https://youtu.be/KjltLWykwsw
How to calculate the sin, cos and tan of an angle: https://youtu.be/HVi5BSi4ogQ
How to calculate an angle using sin, cos and tan: https://youtu.be/bOKiXhO-0VA
How to calculate a side using sin, cos and tan: https://youtu.be/rO9ZElzMB8o
Word problem, how far is the boat from the cliff: https://youtu.be/-5hp60W1JiY
Word problem, how high is the building with a wall blocking the building (two triangles needed): https://youtu.be/mU0248okfYg
Could you do a few on logs or defrenciation and integration maybe for hl ?